飞机长桁零件的导孔加工是一项很繁重的工作。七米长的长桁零件,就有导孔二百多个。以前采用台钻钻孔,需要先按样板在零件上打出冲点,然后钻孔。这种方法劳动量大,需用的设备、人员多,工效低,废品和超差品经常发生,跟不上生产发展的需要。我们研制成功的程序控制制孔机,操作方便,工作可靠,提高工效十倍左右,实现了导孔加工的自动化。现已稳定地用于批生产,很受工人的欢迎。 The machining of the pilot holes in the plane parts of the aircraft is a very heavy workload. Seven meters long truss parts, there are more than 200 pilot holes. Drill holes used before, you need to press the model on the part hit punching, and then drilling. This method requires a lot of labor, equipment, personnel, inefficiencies, waste products and excess products often occur and can not keep pace with the needs of production and development. We developed a successful program control system hole machine, easy operation, reliable work, improve work efficiency about ten times, to achieve the automation of the pilot hole. Now stable for batch production, very popular with workers.